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Related Party Transactions - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($) Loan	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) Loan	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Sep. 04, 2024	Feb. 08, 2023 USD ($)	Jun. 30, 2021 USD ($)
Related Party Transaction [Line Items]
Termination fee, percent fee of base management fee	3		3
Mortgage loans on real estate, commercial and consumer, net	$ 8,624,910		$ 8,624,910		$ 7,104,156
Outstanding amount	530,500		530,500		462,900
Joint venture | Eight Hospitals in Massachusetts
Related Party Transaction [Line Items]
Equity method investment, ownership percentage						41.20%
Equity method investment	$ 23,200		$ 23,200
Atlas Facility
Related Party Transaction [Line Items]
Number of loans | Loan	5		5
Secured Debt | Credit Suisse Facility | Line of Credit
Related Party Transaction [Line Items]
Outstanding amount							$ 632,300
Commercial Mortgage and Subordinated Portfolio Segment
Related Party Transaction [Line Items]
Mortgage loans on real estate, commercial and consumer, net	$ 4,200		$ 4,200		8,300
Arrangement fees
Related Party Transaction [Line Items]
Incentive Fee Payable								$ 400
Arrangement fees | 2025 Term Loan
Related Party Transaction [Line Items]
Incentive Fee Payable	1,000		1,000
Arrangement fees | 2028 Term Loan
Related Party Transaction [Line Items]
Incentive Fee Payable	200		$ 200
Limited Liability Company
Related Party Transaction [Line Items]
Rate of management fees			1.50%
Extension period			1 year
Period of termination			180 days
Termination fee calculation period			24 months
Limited Liability Company | Management Agreement
Related Party Transaction [Line Items]
Payable to related party	8,400		$ 8,400		$ 8,700
Affiliated Entity | 2028 Term Loan
Related Party Transaction [Line Items]
Debt instrument, face amount	30,000		30,000
Affiliated Entity | 2030 Term Loan
Related Party Transaction [Line Items]
Debt instrument, face amount	25,000		25,000
Affiliated Entity | Management Agreement
Related Party Transaction [Line Items]
Management fees to related party	8,400	$ 9,200	16,900	$ 18,600
Professional and Contract Services Expense	$ 2,400	$ 2,000	$ 8,100	$ 3,800

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